Responsive Tabs to accordion

Responsive Tabs

by Emmanuel Garcia

HTML

<dl class="accordion">
  <dt class="accordion__title">Item 1</dt>
  <dd class="accordion__content">
    <p><b>Item 1 content.</b> Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras tincidunt pellentesque lorem, id suscipit dolor rutrum id. Morbi facilisis porta volutpat. Fusce adipiscing, mauris quis congue tincidunt, sapien purus suscipit odio, quis dictum odio tortor in sem. Ut sit amet libero nec orci mattis fringilla.</p>
    <p>Praesent eu ipsum in sapien tincidunt molestie sed ut magna. Nam accumsan dui at orci rhoncus pharetra tincidunt elit ullamcorper. Sed ac mauris ipsum. Nullam imperdiet sapien id purus pretium id aliquam mi ullamcorper.</p>
  </dd>
  <dt class="accordion__title">Item 2</dt>
  <dd class="accordion__content">
    <p><b>Item 2 content.</b> Ut laoreet augue et neque pretium non sagittis nibh pulvinar. Etiam ornare tincidunt orci quis ultrices. Pellentesque ac sapien ac purus gravida ullamcorper. Duis rhoncus sodales lacus, vitae adipiscing tellus pharetra sed. Praesent bibendum lacus quis metus condimentum ac accumsan orci vulputate. Aenean fringilla massa vitae metus facilisis congue. Morbi placerat eros ac sapien semper pulvinar. Vestibulum facilisis, ligula a molestie venenatis, metus justo ullamcorper ipsum, congue aliquet dolor tortor eu neque. Sed imperdiet, nibh ut vestibulum tempor, nibh dui volutpat lacus, vel gravida magna justo sit amet quam. Quisque tincidunt ligula at nisl imperdiet sagittis. Morbi rutrum tempor arcu, non ultrices sem semper a. Aliquam quis sem mi.</p>
  </dd>
  <dt class="accordion__title">Item 3</dt>
  <dd class="accordion__content">
    <p><b>Item 3 content.</b> Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Phasellus dui urna, mollis vel suscipit in, pharetra at ligula. Pellentesque a est vel est fermentum pellentesque sed sit amet dolor. Nunc in dapibus nibh. Aliquam erat volutpat. Phasellus vel dui sed nibh iaculis convallis id sit amet urna. Proin nec...

CSS

body {
  padding: 2em;
}

.accordion {
  padding: 0;
  margin: 2em 0;
  width: 100%;
  overflow: hidden;
  font-size: 1em;
  position: relative;
}

.accordion__title {
  padding: 0 1em;
  background: #ccc;
  border-top: 2px solid #eee;
  color: #222;
  float: left;
  line-height: 3;
  height: 3em;
  cursor: pointer;
  margin-right: .25em;
}

.no-js .accordion__title {
  float: none;
  height:auto;
  cursor:auto;
  margin:0;
  padding:0 2em;
}

.accordion__content {
  float: right;
  width: 100%;
  margin: 3em 0 0 -100%;
  padding: 2em;
  background: silver;
}

.no-js .accordion__content {
  float:left;
  margin:0;
}

.accordion__title:hover,
.accordion__title.active {
  background: silver;
  color: white;
}

.no-js .accordion__title:hover {
  background-color:#ccc;
  color:#222;
}

.accordion__title.active {
  border-top-color:lime;
}

@media (max-width: 48em) {
  
  .accordion {
    border: 1px solid grey;
  }
  
  .accordion__title,
  .accordion__content { 
    float: none;
    margin: 0;
  }
  
  .accordion__title:first-child {
    border:none;
  }
  
 .accordion__title.active {
  border-top-color:#eee;
  }
  
  .accordion__title.active, .accordion__title:hover {
    background:#777;
  }
  
  .accordion__title:before {
  content:"+";
  text-align:center;
  width:2em;
  display:inline-block;
  }
 .accordion__title.active:before {
  content:"-";
  }
  
 .overflow-scrolling {
  overflow-y: scroll;
  height:11em;
  padding:1em 1em 0 1em;
  /* Warning: momemtum scrolling seems buggy on iOS 7  */
  -webkit-overflow-scrolling: touch;
  }

  .accordion__content {
    position:relative;
    overflow:hidden;
    padding:0;
  }
  
   .no-js .accordion__content {
    padding:1em;
    overflow:auto;
    display:block;
  }
  
  .accordion__content:after {
    position:absolute;
    top:100%;
    left:0;
    width:100%;
    height:50px;
    border-radius:10px 0 0 10px / 50% 0 0 50%;
    box-shadow:-5px 0 10px rgba(0, 0, 0, 0.5);
    content:'';
}
   
}

JavaScript

if($(window).width() > 768){

// Hide all but first tab content on larger viewports
$('.accordion__content:not(:first)').hide();

// Activate first tab
$('.accordion__title:first-child').addClass('active');

} else {
  
// Hide all content items on narrow viewports
$('.accordion__content').hide();
};

// Wrap a div around content to create a scrolling container which we're going to use on narrow viewports
$( ".accordion__content" ).wrapInner( "<div class='overflow-scrolling'></div>" );

// The clicking action
$('.accordion__title').on('click', function() {
$('.accordion__content').hide();
$(this).next().show().prev().addClass('active').siblings().removeClass('active');
});